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Standards GB - Chinese national standards - Page 5505
Standards GB are Chinese national standards, which are issued by China's Standardization Administration Office (SAC).
Chinese national standards are used all over China commonly labeled as GB standards. They determine the united production requirements regarding product safety and quality .
GB standards are often modified or created according to the international standards of ISO, IEC or any other international level.
Although, they are largely harmonized, GB standards may differ from international standards .
Approximately 15% of all GB standards are obligatory and they can be identified according to the prefix GB, after which the code of the standards follows:
GB – Obligatory national standards
GB/T – Optional national standards
GB/Z – National steering technical document
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GB 11074.5-1989
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Samarium oxide--Determination of acid soluble silicon content--Molybdenum blue spectrophotometric method
WITHDRAWN published on 1.1.1989
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GB 11074.6-1989
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Samarium oxide--Determination of calcium oxide content--Flame atomic absorption spectrophotometric method
WITHDRAWN published on 1.1.1989
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GB/T 11074.6-1989
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Samarium oxide--Determination of calcium oxide content--Flame atomic absorption spectrophotometric method
WITHDRAWN published on 31.3.1989
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GB 11074.7-1989
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Samarium oxide--Determination of chlorine content--Mercury thiocyanate-iron nitrate spectrophotometric method
WITHDRAWN published on 1.1.1989
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GB/T 11075-1989
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Lithium carbonate technical grade
WITHDRAWN published on 31.3.1989
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GB/T 11075-2003
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Lithium carbonate
WITHDRAWN published on 3.11.2003
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GB 11076-1989
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Preparation method of buffer solution for the measurement of pH
WITHDRAWN published on 1.1.1989
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GB 11077-1989
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Preparation method of standard solution for the measurement of conductivity meter
WITHDRAWN published on 1.1.1989
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GB 11078-1989
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Test solutions of electric conductivity analyzers--Preparation method of sodium chloride solutions
WITHDRAWN published on 1.1.1989
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GB/T 11079-2000
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Standard test method for carbonizable substances in white mineral oil
WITHDRAWN published on 9.6.2000
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